Lock-washer.



E. D. HEAGNEY.

LOCK WASHER.

APPLICATION FILED S EPT. 7, 1909,

Patented May 31, 1910.

wi/tmeoow UNITED STATE FAT @FQ.

ELMER D. HEAGNEY, OF FRENCH CAMP, CALIFORNIA, ASSIG-NOB OF ONE-FOURTH TOBARRY M. BAINBRIDGE, OF FRENCH CAMP, CALIFORNIA.

LOCK-WASHER.

To all whom it may concern:

Be it known that I, ELMER D. HEAGNEY, a citizen of the United States,residing at French Camp, in the county of San Joaquin, State ofCalifornia, have invented certain new and useful Improvements inLocklVashers; and I do declare the following to be a full, clear, andexact description of the same, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to the characters of reference markedthereon, which form a part of this application.

This invention relates to improvements in nut-locks and particularly toa lock washer for locking nuts in position upon their bolts, the objectof the same being to produce a spring lock washer which will be apositive look under all conditions and one which can be readily unlockedand removed for any purpose.

A further object of the invention is to produce a simple and inexpensivedevice and yet one which is exceedingly effective for the purposes forwhich it is designed and one which will not cause it to become necessaryto alter or change the nut or bolt to apply the same.

These objects I accomplish by means of such structure and relativearrangement of parts as will fully appear by a perusal of the followingspecification and claim.

In the drawings similar characters of reference indicate correspondingparts in the several views.

Figure 1 is a sectional view of a rail and fish plate structure showinga nut and bolt therein, the nut being locked in position by my improvedlock washer. Fig. 2 is a front elevation of a bolt, nut and my improvedwasher as they appear in locked position. Fig. 3 is a front elevation ofthe lock washer showing central incisions forming ears to be bent back.Fig. 1 is a similar view showing the ears bent back. Fig. 5 is a topplan view of the washer. Fig. 6 is a similar view to Fig. 5 but showingthe parts of the washer spring farther out.

Referring now more particularly to the characters of reference on thedrawings 1 designates a rail and 2 the fish plates thereon through whichrail and fish plates is dis posed the usual bolt 8 carrying the ordinarytype of nut 4.

Specification of Letters Patent.

Application filed September 7, 1909.

Patented May 31, 1910.

Serial No. 518,452.

Interposed between the nut 4: and the fish plate 2 is a lock washerhaving a square base 5 resting on the base of the fish plate whichprevents the said washer from turning on the bolt 3 over which it isdisposed by means of its bore 6. The washer is split in a semicircle asat 7 leaving the washer proper as at 8 and an outside spring ring as at9 which ring curves obliquely over the top of the portion 8 thusprojecting partly against the fish plate 2 on one side and against thenut 4 on the other side and gives to this ring a spring tension at alltimes. I further provide a plurality of ears 10 formed by cuttingincisions 11 centrally of the portion 8 which ears 10 are alternatelybent on opposite sides of the portion 8 and around the bore 6 giving theportion 8 a thickness three times that of the spring ring 9 and thussuch ring of alternated ears 10 will at all times present a springtension to the nut 4.

On each side of the ring 9 are outwardly projecting spring fingermembers 12 having squared shoulders 13 to engage the nut 4c and lock thesame in position upon the bolt, said nut passing over and depressingsaid spring fingers when being advanced upon the bolt but engaging saidshoulders when it'has a tendency to move backward from the bolt. Ofcourse when it is desired to remove the nut a wrench can be used whichwill depress the fingers l2 and ring 9 as it turns the nut.

By having the spring ring 9 on each side of the washer and the fingers12 on each side of the said ring the washer can be readily insertedeither way upon the belt or can be readily removed and turned aroundshould any of the finger members break or bend.

A few of the advantages gained by my invention are the simplicity,durability and cheapness of the same, it is produced in one piece, iteliminates the fitting of parts and loosening of parts prevalent in somany forms of nut locks, the lock does not necessitate the changing ofthe bolt or nut, and the lock can be removed without breakage.

From the foregoing description it will be readily seen that I haveproduced such a lock washer as substantially fulfils the objects of theinvention as set forth herein.

\Vhile this specification sets forth in detail the present and preferredconstruction of the device still in practice such deviations 10 ing outof the plane of the Washer, a spring not form a departure from thespirit of the said Washer and a locking means on said invention. ring.

Having thus described my invention What In testimony whereof I aflix mysignature I claim as new zipd useful and desire to sein presence of twoWitnesses. cure b Letters atent is T r A 10 0 1: Washer comprising aWasher proper ELMER HEAGLEL having acentral orifice a plurality of carson said Washer around said orifice project- Witnesses PERCY S.WVEBs'rER,

from such detail may be resorted to as do I ring disposed obliquelyacross the top of i JOSHUA R. WEBSTER.

